string formart for date in xaml code

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WPF

in order to show date in Text box by xaml code :

<textblock name="tbArrivalDateTime">
            Text="{Binding Source={x:Static sys:DateTime.Today},
                   StringFormat='{}{0:dd-MMM-yyyy}'}"
                   VerticalAlignment="Center"
                   Grid.Row="3"
                   Grid.Column="1"
                   Margin="10,0,0,0"
                   HorizontalAlignment="Left"/>

the result for this is for example: 12/29/2012


the problem that i need to show the result seperated in 3 texblock
the first show day name
the second show day number
the third show month name

the result must be like this:

Sat.
29
Dec

and in frensh

Sam.
29
Dec

in french and english.

any idea for this